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Quantifying Antimicrobial Use in Dutch Companion Animals

By Nonke E. M. Hopman, Marloes A. M. van Dijk, Els M. Broens, Jaap A. Wagenaar, Dick J. J. Heederik, Ingeborg M. van Geijlswijk

Category Journal Articles

Antimicrobial resistance (AMR) is an increasing threat, both in human and in veterinary medicine. To reduce the selection and spread of AMR, antimicrobial use (AMU) should be optimized, also in companion animals. To be able to optimize AMU, a feasible method to quantify AMU and information on current AMU are needed. Therefore, a method to quantify AMU was developed, using the number of Defined Daily Doses Animal (DDDA). This method was used to explore applied antimicrobial classes and to identify differences in prescribing patterns in time and between veterinary clinics. Antimicrobial procurement data of the years 2012–2014 were collected retrospectively from 100 Dutch veterinary clinics providing care for companion animals. The mean number of DDDAs per clinic per year decreased significantly from 2012 to 2014. A shift in used classes of antimicrobials (AMs) was seen as well, with a significant decrease in use of third choice AMs (i.e., fluoroquinolones and third generation cephalosporins). Large differences in total AMU were seen between clinics ranging from 64-fold in 2012 to 20-fold in 2014. Despite the relative low and decreasing AMU in Dutch companion animal clinics during the study, the substantial differences in antimicrobial prescribing practices between clinics suggest that there is still room for quantitative and qualitative optimization of AMU.


Marcy Wilhelm-South

Purdue University

Date 2019
Publication Title Frontiers in Veterinary Science
Volume 6
Pages 9
DOI 10.3389/fvets.2019.00158
Language English
Additional Language English
Cite this work

Researchers should cite this work as follows:

  1. Animal roles
  2. Antibiotics
  3. Antimicrobials
  4. open access
  5. Pets and companion animals
  6. Veterinary medicine
  1. open access